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}{% \vskip8pt \textcolor{GJMediumGrey}{\rule{\textwidth}{2pt}} \vskip16pt } \usepackage[absolute,overlay]{textpos} \makeatother \usepackage{lineno} \linenumbers \begin{document} \author[1]{Nejia Nekaa} \author[2]{Sirine Gha} \affil[1]{ Faculty of economics and management sfax} \renewcommand\Authands{ and } \date{\small \em Received: 9 December 2015 Accepted: 5 January 2016 Published: 15 January 2016} \maketitle \begin{abstract} Islamic finance is an ethical finance because it encouraged investment in sectors socially responsible. It prohibits investment in the illicit sectors and supports the distribution of profits and losses. In this study, we investigated the efficiency of 21 Islamic banks around the world over a period of five years ranging from 2010 to 2014. We use in this context the ESOP, ROAE, Ooi, CTI, denies understanding overall profitability and the method of wrapping the data (DEA) to calculate efficiency scores. \end{abstract} \keywords{efficiency, Islamic banks, ratio analysis, DEA.} \begin{textblock*}{18cm}(1cm,1cm) % {block width} (coords) \textcolor{GJBlue}{\LARGE Global Journals \LaTeX\ JournalKaleidoscope\texttrademark} \end{textblock*} \begin{textblock*}{18cm}(1.4cm,1.5cm) % {block width} (coords) \textcolor{GJBlue}{\footnotesize \\ Artificial Intelligence formulated this projection for compatibility purposes from the original article published at Global Journals. However, this technology is currently in beta. \emph{Therefore, kindly ignore odd layouts, missed formulae, text, tables, or figures.}} \end{textblock*} \let\tabcellsep& \section[{Introduction}]{Introduction}\par evertheless, the Islamic finance remains for centuries; it has really begun its activity in 1963 with the birth of the First Islamic bank "Al MITGHAM". Other banks have been emerged in the 1970s with the occurrence of the organization of the Islamic Conference (OIC) namely Al Social Nassar Bank in 1971 and the Bank of Dubai in 1975 to count today more than 500 banks. Indeed, the Islamic finance is supported on the chariaa and therefore it prohibits the Riba, the gharare, the maysire and maintains the sharing of profits and losses. Thus, the Islamic finance is interested only to grant the means available to their jobs. In addition, the Islamic finance has exposed the interest of several researchers. Some have focused on the efficiency of Islamic banks; while others focused to a comparison between the Islamic banks and traditional banks.\par Indeed, the efficiency is the reasonable use of available resources in order to achieve the targets set out in advance. In other words, it is the ability to achieve the goals collected while minimizing the means employed. To judge the stability of a firm, it is necessary to judge its productive performance and situate it in relation to its competitors. It is, therefore, to study the efficiency of this last and to examine the manner with which it manages its resources. Subsequently, the efficiency of a company is a topical theme, whatever the size or sector of activity. This is justified by the fact that the improvement of this efficiency involves various strengths to know: reduction of costs, improvement of the quality of product and services offered, gain a competitive advantage, and conquer new markets.\par As well, there is a continuum of studies dealing with the efficiency and the performance of Islamic banks. And therefore the findings are mixed: sometimes in favor earlier to the disadvantage of the Islamic banking system.\par In this framework, as an important pillar in the process of economic development, a fundamental question is exposed on the determination of level of efficiency or productivity of the Islamic banking sector. And therefore, we ask the following question: Islamic banks are -they technically efficient?\par To answer this question, it is necessary, in a first time; throw a glance on the review of the literature concerning the efficiency of Islamic banks and to appeal to the different approaches of measures of technical efficiency in a second time. \section[{II.}]{II.} \section[{Review of the Literature}]{Review of the Literature}\par Islamic banks are composed of a compliance board to the Chariaa whose role is to monitor the activities of the bank and to ratify its financial transactions based on the principles of the Islamic jurisprudence. As much, according to \hyperref[b12]{Iqbal (1997)}, a bank is so-called Islamic if some foundations are respected namely the prohibition of the interest (the Riba), the prohibition of excessive risk (Al-Gharar), the distribution of profits and losses, the support of real assets and the prohibition of activities illegitimate. These specificities of Islamic banks have captivated the reflection of researchers checking to study if in respecting the provenances of Islam, these financial institutions are they efficient.\par The main products of Islamic banks are presented in the following table: \section[{Mousharaka}]{Mousharaka}\par A contract for the participation of two or more parties in the capital and the management of a same case, it is a partnership with allocation of losses and profits. \section[{Mourabaha}]{Mourabaha}\par A contract of purchase and resale with a profit margin prefixed in advance, that is to say that the bank buys a supplier a tangible property at the request of its client, the well is resold to the customer at a price equal to the cost of purchase plus a margin. \section[{Ijarah}]{Ijarah}\par A leasing contract or lease by which a bank buys a well for the completion of a project and the rents to a company for an amount and a maturity agreed. \section[{Al-Istisnaa}]{Al-Istisnaa}\par Brings together the Moustasnii (invest isseur) and the Sanii (Contractor manufacturer) for the execution of a property for a fee payable in advance. The two parties will agree on the price and the time of delivery. \section[{The Bai al-Salam}]{The Bai al-Salam}\par This technique is to pay in advance of goods predetermined. And the financial pays the price of the asset in advance for a delivery date deferred. \section[{Qard-Hasan}]{Qard-Hasan}\par It is a loan without interest often supported to a guarantee, granted by the Bank to its customers in order to cope with circumstances distinctive (death, marriage, child education?.).\par The Sukuks Are an Islamic commitment backed by a tangible assets. They indicate a right of debt during a specified period and they are attached to investment funds where the risk and yields assistants are predefined.\par In effect, the Bank Literature Analysis Two types of efficiency: the efficiency of scale and technical efficiency. First of all, the efficiency of scale is defined according to \hyperref[b26]{Yudistira (2004)} as "the ratio between the cost and the volume of production of a bank". Similarly, {\ref Farell (1957)} has distinguished between technical efficiency and allocative efficiency. With respect to technical efficiency, discerning its origin in the theoretical work of fundamental Debreu (1951), {\ref Koopmans (1951)} and \hyperref[b9]{Farrell (1957)}, it is to seek the optimal output that can create according to a certain level of inputs. In other words, it is to achieve a certain level of output with a minimum of inputs. While a firm is called allocativement efficiently if it uses the programs of productions are less expensive and which ensure the profit the most high that is to say that it uses the inputs of production in the optimum proportions taking into account their market price.\par On the empirical plan, a diversity of work are centralized on the study of the efficiency of Islamic banks based on multiple methods including the method of financial ratios, traditional non-parametric method (analysis of wrap data (DEA)) and the method parametric (analysis of the stochastic border (SFA)).\par For the method non-parametric DEA has been developed by {\ref Farell (1957)} in his article "The Measurent of productive efficiency". The DEA allows you to determine the maximum of inputs to inject into a mechanism of production beyond which the profit fall. It consists of user the mathematical programming to build a border in fractions (part-wise surface) based on a set of data of the production units. Of this fact, the efficiency of a unit of production is calculated by report to this border in fragments.\par As to the stochastic approach, named yet" model to errors composed", is developed by Aigner, Lovell and Schmidt (1977), {\ref Meeusen and Van den Broek (1977)}. It decomposes the error term into two components: On the one hand, a component of inefficiency by report to the border that follows an asymmetrical distribution defined positively to a production function, and on the other hand, a component of random error representing the measurement errors and the exogenous shocks that follows a symmetrical distribution Normal.\par In this context, based on the method of financial ratios traditional, \hyperref[b22]{Samad (2004)} \section[{Framework of the Study a) Presentation of the sample}]{Framework of the Study a) Presentation of the sample}\par The necessary information is collected via the annual reports of Islamic Banks sample of our study: six banks represent the Africa (Tunisia, the Sudan, Egypt, Senegal, Tanzania and the Nigiria), seven belong to Asia (Bangladesh, Malaysia, Pakistan, Brunei, Indonesia, Sri Lanka and Thailand), three in Europe (Switzerland, the United Kingdom and Turkey), and finally five located in Middle East (Saudi Arabia, Kuwait, Qatar, Dubai and the Emirates-Arabes-United). These data relate to a period of study extending from 2010 to 2014. \section[{b) Research Methodology}]{b) Research Methodology}\par In order to understand the efficiency of Islamic banks, we use jointly the analysis by the financial ratios and the method DEA.\par ? The method of financial ratios: According to Farell {\ref (1957)}, in order to assess the average productivity of banks, the founding chronic centralised on the analysis of the efficiency of the banks have had recourse to certain ratios to know the market share (Smirlock, 1985 and Evanoff \& Fortier, 1988), ratios of profitability, efficiency, liquidity, etc... And this is to differentiate between conventional banks and Islamic banks \hyperref[b19]{(Olson \& Zoubi, 2008)} or either to compare the efficiency of different Islamic Banks \hyperref[b20]{(Qureshi \& Shaikh, 2012)}.\par The variables of the method of financial ratios are summarized in the following table: \section[{Interpretation of Results}]{Interpretation of Results} \section[{a) Analysis by the ratios}]{a) Analysis by the ratios}\par The method of analysis by the ratios aims to clarify the level of the performance of a bank according to its capacity to operate revenues and to control costs.\par To this effect, we use the test of Spearman correlation coefficient and the descriptive statistics in order to judge the performance of Islamic Banks object of our study. Based on the test results of the Spearman correlation coefficient, we see a relationship significantly negative between the performance of the average assets invested (ESOP) and efficiency income (OOI). While, the correlation between Efficiency Profit (measured by the performance of the own funds ROAE) and the efficiency income is significantly positive. However, concerning the ratio of efficiency cost (ITC) and the efficiency profit (ESOP and ROAE) are positively and significantly correlated. While, for the ratio denies this relationship is not significant. Thus, our results certify the idea obtained by \hyperref[b20]{Qureshi and Shaikh (2012)} who have concluded a significant positive correlation between scores of efficiency and the two ratios of profit (ESOP and ROAE). \section[{? Correlation between variables}]{? Correlation between variables}\par ? Rank of banks according to the mean and standard deviation of the Ratios Has the basis of the results of this table, we discern that the overall situation of the banks, the subject of our sample, is generally in degradation during the period of study with a few improvements relatively low. This is justified in large part by the consequences of the subprime crisis which has slightly affected the Islamic banks than those conventional.\par However, despite the consequences of this situation, various banks including Albaraka Turkey, Dubai Islamic Bank, Islamic Bank of Senegal and Bank Muamalet Indonesia have experienced an improvement of indicators of their performance (ESOP, ROAE, OOI) while the ratios of efficiency cost (ITCS and denies) have experienced a decrease. By contrast, Albaraka Egypt, Amana Tanzania, Saudi Arabia Al-Inma, Dar Al-Islami Trust Switzerland, Emirates Global Islamic Bank Limited Pakistan, European Investment Bank United Kingdom, Boubyan Bank Kuwait, Lotus Halal Capital Investments Nigiria, Islamic Bank of Thailand and Islamic Bank Bangladesh Limited have been marked by a decrease in the ESOP and ROAE and an increase in other ratios. While, Affin Babk Malaysia and Bank Islam Brunei \section[{Global Journal of Management and Business Research}]{Global Journal of Management and Business Research}\par Volume XVI Issue VI Version I \section[{Year ( )}]{Year ( )}\par Darussalam have been characterized by an improvement of these different ratios of profit, revenue and cost.\par In effect, based on the classification by ratios of different banks, we note that Albaraka Tunis, Al-Inma Saudi Arabia, Islamic Bank of Senegal, Bank Islam Brunei Darussalam, Albaraka Turkey and Bank Muamalat Indonesia have captured the first rows in term of average of ratios profit, income and cost. As well, the banks of Nigiria, U.K., Tanzania, Egypt, Kuwait, Bangladesh, Qatar and Sudan occupy the last row in terms of efficiency benefit, revenue, and cost.\par In addition, we can see that the banks having spent the first ranks in terms of profit are those which have managed to combine efficiency with income cost efficiency. Yet, the barriers of the overall efficiency of the Islamic financial institutions are justified by an institutional environment and culture not favorable to the development of Islamic banks, lack of the spirit of competitiveness, the lack of experience in the marketing of products and services appropriate to the Chariaa and/or poor management of costs. \section[{b) The method of wrapping the data (DEA)}]{b) The method of wrapping the data (DEA)}\par The DEA method is a technique of "benchmarking" where the scores of efficiency shall inform on the margin for improvement of efficiency in terms of the consumption of inputs and production of output. Therefore, the DEA is a tool to aid in the decision. It is, again, to a non-parametric method. She has known an exponential success since its appearance. Of this fact, \hyperref[b8]{Emrouznejad et al (2008)} stipulate that more than 4000 research articles relating to this method have been published in scientific journals. As well, the approach DEA measure the efficiency based on a set of outputs and inputs. It is to measure the efficiency of a unit of decision by calculating the relative difference between the point representing its values of inputs and outputs observed by report to a hypothetical point on the border of production. In other words, the border of production is appreciated by a envelope curve formed segments of the right assembling the entities efficient. And therefore, all the points examined are placed on or under the Border of production.\par In effect, the term efficiency refers to an optimal situation; that is to say a level of maximum output for a given level of input or a level of input minimum for a given level of output. In addition, the technical efficiency (TE) measure the ability to create the maximum amount of goods with a certain level offered to factors of production. In other words, it is the ability to use the minimum of factors of production in order to produce a given quantity of goods. In addition, technical efficiency defines the set of output and input in physical terms. And therefore three main types are to discern. First of all, the efficiency cost where the outputs are moderate in physical terms and the inputs in physical terms and monetary policy. Then, a efficiency income according to which the outputs are measured in physical terms and monetary policy and the inputs in physical terms. And finally, a profit efficiency where the outputs and inputs are expressed in physical terms and monetary policy.\par In turn, the DEA method decomposes the technical efficiency in: Efficiency pure technique (TPE) and the efficiency of scale (SE), which is determined according to a model with yields of scale variables (increasing returns to scale or decreasing). Technical Efficiency pure relates to the inefficiency linked to a management perfectible; that is to say that a company is called inefficient if its management is perfectible and, therefore, the company is poorly managed. Whereas, the efficiency of scale refers to the inefficiencies linked to a size not optimal; that is to say a company is called inefficient if it has not reached its optimal size. In contrast, the yields of scale can be either croissants, called IRS so it is an economy of scale, either decreasing, designated DRS and it is in this case a diseconomy of scale.\par In the light of the following table, we have determined the scores of efficiency via an Option DEA Where t=5 (the number of periods), p=3 (the width of the window) and W=3 (the number of windows). The score of the technical efficiency average pure during the whole period of the study is to the order of 90.39\% which means that the Islamic banks of our sample would have been able to create the same quantity of output operated with only 90.39\% of worn inputs where a loss of 9.61\% of resources. As well, we note that the average scores PTE exceed those of TE; this is explained by the fact that the PTE are the TE excluding any inefficiencies of scale. This conclusion is confirmed by that of \hyperref[b17]{Niazi (2003)}. Still a technical efficiency of 65.41\% means that in total the Islamic banks can reduce all inputs of 34.59\%. Similarly, a value of technical efficiency of pure 90.39\% implies that a better management allows you to reduce the consumption of input of 9.61\%.\par Yet, for the banks of Pakistan and Turkey, in improving the way in which the banks are managed, respectively 12.7\% and 39\% of inputs can be saved. And by adjusting the size of the banks, the consumption of inputs can be reduced respectively of 8.1\% and 32.7\%. Similarly, for the Bank of Emirates, she is well managed since its technical efficiency pure reached a level of 100\%. Of this fact, it cannot improve its efficiency pure. Therefore, the margin for improvement is located in an adjustment of its size in saving 0.3\% of inputs. The same case for the banks of Dubai, Nigiria, Sri Lanka and Saudi Arabia who display a technical efficiency of pure 100\%.\par In addition, in order to better identify the nature of the returns to scale and to explain the inefficiencies of scale if it exists, we have used on the same database another model NIRS (Non-Increasing Returns to Scale). Of this fact, if the CRS score is equal to the Score VRS, then the Bank operates with constant returns to scale (CRS), in other words, an increase of inputs is worth a corresponding increase of outputs (it is the case of Qatar International Bank, Amana Tanzania, Bank Islam Brunei Darussalam, Dar Al-Islam Switzerland and Bank Muamalat Indonesia).\par Whereas, if the score CRS is different from the VRS score, therefore the Bank operates with yields of scale variables (VRS) which means that an increase in inputs should be an unequal increase of outputs. And therefore, the yields of scale can be croissants (IRS: increasing returns to scale) if the increase in outputs exceeds the inputs, or descending (DRS: decreasing returns to scale) in the case where the increase in outputs does not exceed that of the inputs. Thus, to determine if it is of IRS or DRS, we supported on a comparison of scores to VRS NIRS scores. Of this fact, according Coelli et al. (1998), if the VRS score is equivalent to the Score NIRS, the Bank operates with decreasing returns to scale DRS. By contrast, if the score VRS is different from the NIRS score, the Bank operates with increasing returns to scale IRS.\par Thus, we have compared the contribution of scores of technical efficiency pure (PTE) to the efficiency of scale is for the determination of technical efficiency (TE), we discern a domination of the technical inefficiency pure in report to the inefficiencies of scale for the following banks: "AL Baraka Tunisia", "Albaraka Sudan", "European Islamic Investment Bank United Kingdom", "Islamic Bank of Senegal", "Islamic Bank Bangladesh Limited" and "Affin Bank Malaysia". This justifies a inefficient management of these banks concerning the exploitation of these resources despite the fact that they operate on a scale relatively optimal.\par In effect, these inefficient banks throughout the period and operate with decreasing returns to scale. As to "Emirates Global Islamic Bank Limited Pakistan", "Emirates Islamic" and "Al-Inma Saudi Arabia", they are also inefficient on the entire period but operate with increasing returns to scale. Whereas, "Qatar National Islamic Bank", "Islamic Bank of Thailand", "Bank Muamalat Indonesia", "Dar Al-Islam Swiss Trust", "Bank Islam Brunei Darussalam" and "Amana Tanzania " prove efficient. Yet, Srairi and Kouki (2012) stipulate that small banks tend to operate in CRS or IRS with banks of large size extend to operate in CRS or DRS. This conclusion is adequate to our achievements as the banks of our sample operating in IRS are of small sizes (depending on the natural logarithm of the total active) from banks of large size operating in DRS.\par V. \section[{Conclusion}]{Conclusion}\par Islamic finance is today an important growth across the world and is becoming more and more necessary as a competitor of the finance the so-called "conventional". It is for this reason, this paper represents a study of the efficiency of a sample of a few Islamic banks on a global scale. This study is interested in 21 Islamic banks whose data have been gathered at the basis of the annual reports of the banks over a period extending from 2010 to 2014. Our conclusions are based on the outputs of two methods: the method of financial ratios and to the method DEA.\par This work would allow practitioners, through the evaluation of the performance of the Islamic banking sector to undertake the necessary corrective action in the event of under-performance and contribute to a better allocation of financial resources; and the results that are derived could thus constitute a tool to help the decision making for the monetary authorities having recently introduced products and islamic banking.\par In the light of the method of analysis by the ratios, we discern Albaraka Tunis, Al-Inma Saudi Arabia, Islamic Bank of Senegal, Bank Islam Brunei Darussalam, Albaraka Turkey and Bank Muamalat Indonesia has monopolized the first positions in term of average of ratios ROAE, ITCS and NTE. As much, the banks of Nigiria, U.K., Tanzania, Egypt and Kuwait must their first ranks in terms of efficiency in terms of standard deviation. With regard to the banks of Bangladesh, Qatar and Sudan have dedicated the last row in terms of efficiency benefit, revenue, and cost.\par Similarly, the test of Spearman correlation has allowed us to find that the analysis by the ratios and the DEA lead to concordant results. As well, these two methods are complementary.\par In effect, the method DEA presents interesting outcomes: the majority of banks in our sample are technically inefficient, with an average loss of 9.61\% of inputs to the production of the same level of output to the exception of "Qatar International Islamic Bank", "Islamic Bank of Thailand", "Bank Muamalat Indonesia", "Dar Al-Islam Swiss Trust", "Bank Islam Brunei Darussalam" and "Amana Tanzania". Of course, the results and conclusions acquired at the end of this work are approvable only for the sample and the period in question. However, this work may constitute a starting point for other subsequent studies in what it would be advisable to introduce other variables of efficiencies. \section[{Bibliographies}]{Bibliographies}\begin{figure}[htbp] \noindent\textbf{}\includegraphics[]{image-2.png} \caption{\label{fig_0}}\end{figure} \begin{figure}[htbp] \noindent\textbf{1} \par \begin{longtable}{} \end{longtable} \par \caption{\label{tab_0}Table 1 :}\end{figure} \begin{figure}[htbp] \noindent\textbf{2} \par \begin{longtable}{P{0.4533333333333333\textwidth}P{0.2833333333333333\textwidth}P{0.11333333333333333\textwidth}} \tabcellsep \tabcellsep Year\\ \tabcellsep \tabcellsep Volume XVI Issue VI Version I\\ \tabcellsep \tabcellsep ( )\\ Variable Size of the bank Esop (Return on average asset) ROAE (Return on average equity) OOI (other operating income) Itcs (cost to income ratio) Denies (ratio Cost) ? The method of DEA allows exploring the level of Meaning Control Variable Profit Efficiency Income efficiency Cost efficiency\tabcellsep Definition Natural logarithm of the total of assets Net result/average total assets Net result/equity capital Other operating revenue/average total assets Overhead/GNP Other costs that interests/average total assets\tabcellsep Global Journal of Management and Business Research\\ efficiency of a bank, over time, using the resources\tabcellsep \tabcellsep \end{longtable} \par {\small\itshape [Note: to achieve an output well determined. As well, prior to resorting to the DEA for the study of the efficiency of Islamic banks in our sample, we begin first of all by the exposure of our variables are summarized in the following table:]} \caption{\label{tab_1}Table 2 :}\end{figure} \begin{figure}[htbp] \noindent\textbf{3} \par \begin{longtable}{P{0.85\textwidth}} Inputs\end{longtable} \par \caption{\label{tab_2}Table 3 :}\end{figure} \begin{figure}[htbp] \noindent\textbf{4} \par \begin{longtable}{P{0.19985119047619046\textwidth}P{0.17961309523809524\textwidth}P{0.17202380952380952\textwidth}P{0.11889880952380952\textwidth}P{0.08854166666666667\textwidth}P{0.06071428571428571\textwidth}P{0.030357142857142853\textwidth}} \tabcellsep \tabcellsep Esop\tabcellsep Roae\tabcellsep Ooi\tabcellsep Itcs\tabcellsep The\\ \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep NTE\\ Esop\tabcellsep Correlation\tabcellsep 1.0000\tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Roae\tabcellsep Correlation\tabcellsep 0.6285***\tabcellsep 1.0000\tabcellsep \tabcellsep \tabcellsep \\ \tabcellsep Prob\tabcellsep 0.0000\tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Ooi\tabcellsep Correlation\tabcellsep -0.3573***\tabcellsep 0.0670\tabcellsep 1.0000\tabcellsep \tabcellsep \\ \tabcellsep Prob\tabcellsep 0.0002\tabcellsep 0.4968\tabcellsep \tabcellsep \tabcellsep \\ Itcs\tabcellsep Correlation\tabcellsep 0.1403\tabcellsep 0.1222\tabcellsep -0.0392\tabcellsep 1.0000\tabcellsep \\ \tabcellsep Prob\tabcellsep 0.1535\tabcellsep 0.2144\tabcellsep 0.6915\tabcellsep \tabcellsep \\ The\tabcellsep Correlation\tabcellsep 0.2700***\tabcellsep 0.1753*\tabcellsep 0.1828*\tabcellsep 0.2140**\tabcellsep 1.0000\\ NTE\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \tabcellsep Prob\tabcellsep 0.0053\tabcellsep 0.0737\tabcellsep 0.0619\tabcellsep 0.0284\tabcellsep \\ \multicolumn{2}{l}{* level 10\%}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{2}{l}{** Level 5 and 10\%}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{3}{l}{*** Level 1\%, 5\% and 10\%}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \end{longtable} \par \caption{\label{tab_3}Table 4 :}\end{figure} \begin{figure}[htbp] \noindent\textbf{5} \par \begin{longtable}{P{0.42096092925026396\textwidth}P{0.03769799366420275\textwidth}P{0.010770855332629356\textwidth}P{0.033210137275607184\textwidth}P{0.05475184794086589\textwidth}P{0.033210137275607184\textwidth}P{0.032312565997888065\textwidth}P{0.032312565997888065\textwidth}P{0.06462513199577613\textwidth}P{0.033210137275607184\textwidth}P{0.032312565997888065\textwidth}P{0.032312565997888065\textwidth}P{0.032312565997888065\textwidth}} \multicolumn{2}{l}{Rank}\tabcellsep \tabcellsep \tabcellsep \multicolumn{3}{l}{According to the Average}\tabcellsep \tabcellsep \multicolumn{5}{l}{According to the standard deviation}\\ \multicolumn{2}{l}{Banks}\tabcellsep \tabcellsep ROAA\tabcellsep ROAE\tabcellsep OOI\tabcellsep CTI\tabcellsep NTE\tabcellsep ROAA\tabcellsep ROAE\tabcellsep OOI\tabcellsep CTI\tabcellsep NTE\\ \multicolumn{3}{l}{Affin Bank (Malysie)}\tabcellsep 9\tabcellsep 8\tabcellsep 1\tabcellsep 1\tabcellsep 17\tabcellsep 12\tabcellsep 8\tabcellsep 15\tabcellsep 12\tabcellsep 11\\ \multicolumn{3}{l}{Al-I NMA Bank (Saudi}\tabcellsep 2\tabcellsep 9\tabcellsep 1 2\tabcellsep 10\tabcellsep 21\tabcellsep 15\tabcellsep 18\tabcellsep 18\tabcellsep 15\tabcellsep 17\\ Arabia)\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{2}{l}{Albaraka Sudan}\tabcellsep \tabcellsep 8\tabcellsep 10\tabcellsep 13\tabcellsep 7\tabcellsep 12\tabcellsep 14\tabcellsep 17\tabcellsep 21\tabcellsep 18\tabcellsep 12\\ \multicolumn{2}{l}{Albaraka Tunisia}\tabcellsep \tabcellsep 1\tabcellsep 2\tabcellsep 3\tabcellsep 3\tabcellsep 4\tabcellsep 20\tabcellsep 20\tabcellsep 14\tabcellsep 19\tabcellsep 14\\ \multicolumn{2}{l}{Albaraka Turkey}\tabcellsep \tabcellsep 5\tabcellsep 3\tabcellsep 2\tabcellsep 17\tabcellsep 14\tabcellsep 17\tabcellsep 21\tabcellsep 12\tabcellsep 17\tabcellsep 9\\ \multicolumn{2}{l}{Albaraka (Egypt)}\tabcellsep \tabcellsep 21\tabcellsep 20\tabcellsep 17\tabcellsep 13\tabcellsep 16\tabcellsep 1\tabcellsep 2\tabcellsep 2\tabcellsep 10\tabcellsep 10\\ \multicolumn{3}{l}{Amana (Tanzania)}\tabcellsep 13\tabcellsep 18\tabcellsep 7\tabcellsep 19\tabcellsep 13\tabcellsep 2\tabcellsep 3\tabcellsep 4\tabcellsep 5\tabcellsep 1\\ \multicolumn{3}{l}{Amana (Sri Lanka)}\tabcellsep 17\tabcellsep 15\tabcellsep 10\tabcellsep 21\tabcellsep 7\tabcellsep 10\tabcellsep 16\tabcellsep 7\tabcellsep 7\tabcellsep 15\\ \multicolumn{3}{l}{Bank Islam Brunei}\tabcellsep 4\tabcellsep 7\tabcellsep 6\tabcellsep 14\tabcellsep 3\tabcellsep 8\tabcellsep 15\tabcellsep 5\tabcellsep 13\tabcellsep 6\\ \multicolumn{2}{l}{Darussalam}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Bank\tabcellsep \multicolumn{2}{l}{Muamalat}\tabcellsep 6\tabcellsep 1\tabcellsep 19\tabcellsep 16\tabcellsep 20\tabcellsep 16\tabcellsep 14\tabcellsep 10\tabcellsep 10\tabcellsep 19\\ \multicolumn{2}{l}{(Indonesia)}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Islamic\tabcellsep Bank\tabcellsep of\tabcellsep 3\tabcellsep 5\tabcellsep 16\tabcellsep 15\tabcellsep 8\tabcellsep 6\tabcellsep 6\tabcellsep 3\tabcellsep 6\tabcellsep 2\\ Senegal\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Boubyan\tabcellsep \tabcellsep Bank\tabcellsep 15\tabcellsep 13\tabcellsep 9\tabcellsep 5\tabcellsep 15\tabcellsep 5\tabcellsep 9\tabcellsep 16\tabcellsep 4\tabcellsep 13\\ (Kuwait)\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{3}{l}{Dar Al-Islamic Trust}\tabcellsep 12\tabcellsep 12\tabcellsep 8\tabcellsep 18\tabcellsep 19\tabcellsep 7\tabcellsep 10\tabcellsep 6\tabcellsep 3\tabcellsep 3\\ \multicolumn{2}{l}{(Switzerland)}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{3}{l}{Dubai Islamic Bank}\tabcellsep 7\tabcellsep 6\tabcellsep 18\tabcellsep 20\tabcellsep 16\tabcellsep 9\tabcellsep 13\tabcellsep 17\tabcellsep 1\tabcellsep 16\\ \multicolumn{3}{l}{Emirates Islamic Bank}\tabcellsep 16\tabcellsep 14\tabcellsep 5\tabcellsep 11\tabcellsep 6\tabcellsep 11\tabcellsep 7\tabcellsep 13\tabcellsep 9\tabcellsep 8\\ Emirates\tabcellsep \multicolumn{2}{l}{Global}\tabcellsep 18\tabcellsep 19\tabcellsep 14\tabcellsep 6\tabcellsep 5\tabcellsep 13\tabcellsep 11\tabcellsep 9\tabcellsep 2\tabcellsep 4\\ \multicolumn{3}{l}{Islamic Bank Limited}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ (Pakistan)\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ European\tabcellsep \multicolumn{2}{l}{Islamic}\tabcellsep 19\tabcellsep 16\tabcellsep 11\tabcellsep 2\tabcellsep 11\tabcellsep 3\tabcellsep 12\tabcellsep 1\tabcellsep 11\tabcellsep 5\\ \multicolumn{2}{l}{Investment}\tabcellsep Bank\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{3}{l}{(United Kingdom)}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{3}{l}{Islamic Bank Bangla-}\tabcellsep 10\tabcellsep 4\tabcellsep 4\tabcellsep 4\tabcellsep 1\tabcellsep 19\tabcellsep 5\tabcellsep 20\tabcellsep 14\tabcellsep 20\\ \multicolumn{2}{l}{desh Limited}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Islamic\tabcellsep Bank\tabcellsep of\tabcellsep 14\tabcellsep 21\tabcellsep 20\tabcellsep 12\tabcellsep 2\tabcellsep 17\tabcellsep 4\tabcellsep 19\tabcellsep 8\tabcellsep 7\\ Thailand\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ \multicolumn{3}{l}{Lotus Halal Capital}\tabcellsep 19\tabcellsep 21\tabcellsep 21\tabcellsep 8\tabcellsep 18\tabcellsep 4\tabcellsep 1\tabcellsep 8\tabcellsep 20\tabcellsep 21\\ \multicolumn{3}{l}{Investments (Nigiria)}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \\ Qatar\tabcellsep \multicolumn{2}{l}{International}\tabcellsep 11\tabcellsep 11\tabcellsep 15\tabcellsep 9\tabcellsep 9\tabcellsep 18\tabcellsep 19\tabcellsep 11\tabcellsep 21\tabcellsep 18\\ \multicolumn{2}{l}{Islamic Bank}\tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \tabcellsep \end{longtable} \par \caption{\label{tab_4}Table 5 :}\end{figure} \begin{figure}[htbp] \noindent\textbf{6} \par \begin{longtable}{P{0.034863281249999996\textwidth}P{0.3087890625\textwidth}P{0.13115234374999998\textwidth}P{0.09794921875\textwidth}P{0.099609375\textwidth}P{0.10292968749999999\textwidth}P{0.07470703125\textwidth}} \tabcellsep Banks\tabcellsep Country\tabcellsep TE\tabcellsep TPE\tabcellsep SE\tabcellsep Return to scale\\ B1\tabcellsep Dubai Islamic Bank\tabcellsep Dubai\tabcellsep 77.2\%\tabcellsep 81.7\%\tabcellsep 94.4\%\tabcellsep DRS\\ B2\tabcellsep European Islamic Investment Bank\tabcellsep United Kingdom\tabcellsep 18.8\%\tabcellsep 92.3\%\tabcellsep 20.4\%\tabcellsep DRS\\ B3\tabcellsep Boubyan Bank\tabcellsep Kuwait\tabcellsep 58.4\%\tabcellsep 66.8\%\tabcellsep 87.5\%\tabcellsep DRS\\ B4\tabcellsep Islamic Bank of Senegal\tabcellsep Senegal\tabcellsep 16.7\%\tabcellsep 84.3\%\tabcellsep 19.8\%\tabcellsep DRS\\ B5\tabcellsep Islamic Bank Bangladesh Limited\tabcellsep Bangladesh\tabcellsep 16.9\%\tabcellsep 75.1\%\tabcellsep 22.5\%\tabcellsep DRS\\ B6\tabcellsep Albaraka\tabcellsep Sudan\tabcellsep 54.3\%\tabcellsep 98\%\tabcellsep 55.4\%\tabcellsep DRS\\ B7\tabcellsep Albaraka\tabcellsep Tunis\tabcellsep 61.3\%\tabcellsep 90.5\%\tabcellsep 67.7\%\tabcellsep DRS\\ B8\tabcellsep Lotus Halal Capital Investments\tabcellsep Nigiria\tabcellsep 22.5\%\tabcellsep 100\%\tabcellsep 22.5\%\tabcellsep DRS\\ B9\tabcellsep Affin Bank\tabcellsep Malaysia\tabcellsep 6.4\%\tabcellsep 72.4\%\tabcellsep 8.9\%\tabcellsep DRS\\ B10\tabcellsep Albaraka\tabcellsep Egypt\tabcellsep 87\%\tabcellsep 88.8\%\tabcellsep 97.9 \%\tabcellsep DRS\end{longtable} \par \caption{\label{tab_5}Table 6 :}\end{figure} \footnote{© 2016 Global Journals Inc. (US) 1} \footnote{©20 16 Global Journals Inc. (US)} \backmatter \begin{bibitemlist}{1} \bibitem[Koopman (ed.) ()]{b14}\label{b14} \textit{Analysis of production as an efficient combination of activities}, T Koopman . T.C. Koopmans (ed.) 1951. New York: John Wiley and Sons, Inc. \bibitem[Bader et al. ()]{b3}\label{b3} ‘Cost, Revenue, and profit efficiency of Islamic versus conventional banks: International Evidence Using Data Envelopment Analysis’. Mr K I Bader , S Mohamad , M Ariff , T Hassan . \textit{Islamic Economic Studies} 2008. 15 (2) p. . \bibitem[Hassan and Bashir ()]{b11}\label{b11} ‘Determinants of Islamic banking profitability’. Mr K Hassan , A M Bashir . \textit{Islamic perspectives on Wealth Creation}, Munawar Iqbal, Rodney Wilson (ed.) (UK) 2005. Edinburgh University Press. p. . \bibitem[Srairi and Kouki ()]{b24}\label{b24} ‘Efficiency and stock market performance of Islamic Banks in GCC Countries’. S A Srairi , I Kouki . \textit{Isra International Journal of Islamic Finance} 2012. 4 (2) p. . \bibitem[Meeusen ()]{b15}\label{b15} ‘Efficiency estimation from Cobb-Douglas production functions with composed Errors’. W Meeusen , J . \textit{International Economic Review} 1977. 18 p. . (Van den Broeck) \bibitem[Abdul-Majid et al. ()]{b0}\label{b0} ‘Efficiency in Islamic and conventional banking: an international comparison’. M Abdul-Majid , D Saal , Battisti . \textit{Journal of Productivity} 2003. 34 (1) p. . \bibitem[Yudistira ()]{b26}\label{b26} ‘Efficiency in Islamic banking: an Empirical Analysis of eighteen Banks’. D Yudistira . \textit{Islamic Economic Studies} 2004. 12 (1) p. . \bibitem[Qureshi and Shaikh ()]{b20}\label{b20} ‘Efficiency of Islamic and conventional banks in Pakistan: a nonparametric approach’. Mr A Qureshi , M Shaikh . \textit{International Journal of Business and Management} 2012. 7 (7) p. . \bibitem[Al-Khasawneh et al. ()]{b2}\label{b2} ‘Efficiency of Islamic Banks: check box of North African Arab countries’. J A Al-Khasawneh , K Bassedat , Aktan , P Darshini Pun Thapa . \textit{Qualitative Research in Financial Markets} 2012. 4 (2/3) p. . \bibitem[Emrouznejad et al. ()]{b8}\label{b8} ‘Evaluation of Research in efficiency and productivity: a survey and analysis of the first 30 years of scholarly literature in DEA’. A Emrouznejad , B R Parker , G Tavares . \textit{Socio-Economic Planning Sciences} 2008. 42 (3) p. . \bibitem[Brown ()]{b6}\label{b6} ‘Islamic Banking Comparative Analysis’. B K Brown . \textit{the Arab Bank Review}, 2003. 5 p. . \bibitem[Regaieg ()]{b21}\label{b21} ‘Islamic Banks sides to the subprime crisis: study of the x-efficiency by the SFA method’. Abidi B E Regaieg . \textit{International Journal of Innovation and Applied Studies} 2028-9324. 2015. 10 (1) p. . \bibitem[Iqbal (1997)]{b12}\label{b12} ‘Islamic financial systems’. Z Iqbal . \textit{Finance \& Development} 1997. June. \bibitem[Beck et al. ()]{b5}\label{b5} ‘Islamic vs. conventional banking: business model, efficiency and stability’. T Beck , A Demirgüç-Kunt , O Merrouche . \textit{Journal of Banking \& Finance} 2013. 37 p. . \bibitem[Niazi ()]{b17}\label{b17} \textit{Measuring cost efficiency and productivity change of commercial banks in Pakistan}, G S K Niazi . \url{Http://prr.hec.gov.pk/thesis/2264.pdf} 2003. 1991-2000. Islamabad, Pakistan. Quaid-e Azam University (Phd thesis) \bibitem[Hasan ()]{b10}\label{b10} ‘Measuring Efficiency of Islamic Banks: criteria, methods, and social priorities’. Z Hasan . \textit{MPRA} 2007. 2977. \bibitem[Nor Hayati et al. ()]{b18}\label{b18} ‘Measuring Islamic banks efficiency: the case of world Islamic banking sectors’. A Nor Hayati , N Mohamad Akbar , S Fadzlan . \textit{MPRA} 2011. 29497. \bibitem[Charnes et al. ()]{b7}\label{b7} ‘Measuring the efficiency of decision making units’. Charnes , W W Cooper , E L Rhodes . \textit{European Journal of Operational Research} 1978. 2 (6) p. . \bibitem[Samad ()]{b22}\label{b22} ‘Performance of Interest-Free Islamic banks vis-a-vis interest-based conventional banks of Bahrain’. A Samad . \textit{IIUM Journal of Economics and Management} 2004. 12 (2) . \bibitem[Banker et al. ()]{b4}\label{b4} ‘Some models for estimating technical and scale inefficiencies in data envelopment analysis’. R D Banker , A Charnes , W W Cooper . \textit{Management Science} 1984. 30 (9) p. . \bibitem[Soulama ()]{b23}\label{b23} ‘technical effectiveness and inefficiency at the scale of microfinance institutions in Burkina Faso’. Souleymane Soulama . UMR CNRS 6221. \textit{Laboratory of Economics of Orleans} 2008. p. . \bibitem[Sufian and Noor ()]{b25}\label{b25} ‘The Determinants of Islamic bank's efficiency changes: Empirical Evidence from the MENA and Asian countries Islamic banking sectors’. F Sufian , M A N M Noor . \textit{International Journal of Islamic and Middle Eastern Finance and Management} 2009. 2 (2) p. . \bibitem[Johnes et al. ()]{b13}\label{b13} \textit{The efficiency of Islamic and conventional banks in the Gulf Cooperation Council (GCC) countries: an analysis using financial ratios and Data Envelopment Analysis}, J Johnes , M Izzeldin , V Pappas . 2009. (Working Paper) \bibitem[Farrell ()]{b9}\label{b9} ‘The measurement of productive efficiency’. M Farrell . \textit{Journal of the Royal Statistical Society} 1957. 120 (3) p. . \bibitem[Mohamad Abdul Hamid. M and Azmi. S.M ()]{b16}\label{b16} ‘the performance of banking during 2000-2009: bank Islam Malaysia Berhad and conventional banking in Malaysia’. \textit{International Journal of Economics and Management Sciences} Mohamad Abdul Hamid. M and Azmi. S.M (ed.) 2011. 1 (1) p. . \bibitem[Samad et al. ()]{b1}\label{b1} ‘the performance of Malaysian Islamic bank during 1984-1997: An Exploratory Study’. Abdus Samad , \& Kabir Mr , Hassan . \textit{International Journal of Islamic Financial Services} 2000. 1 (3) . \bibitem[Olson and Zoubi ()]{b19}\label{b19} ‘Using accounting ratios to distinguish between Islamic and conventional banks in the GCC region’. D Olson , T A Zoubi . \textit{the International Journal of Accounting} 2008. 43 (1) p. . \end{bibitemlist} \end{document}